000 00257nam a2200121Ia 4500
008 230303s9999 xx 000 0 und d
041 _aeng
082 _a589 GHA
100 _aGhatak (Ajay)
245 _aoptics
260 _aNEW DELHI
_bTMH
365 _cRS
999 _c204918
_d204918